Aluminum solder.



UNITED STATES PATENT oEE1cE.

HARRY B. LAMBERT, OF NOIITH PELHAM, NEW YORK, ASSIGNOR OF ONE-HA Ll" 'lO MILTON HARRIS. OF NEW YORK, N. Y.

ALUMINUM SOLDER.

T 0 all whom it may concern:

Be it known that I, HARRY B. LAMBERT, residing'in the town of North Pelham, county of VVGStCl'lGSLel, and State of New York,

whose post-oilice address is Box No. 163,.

Pelham, New York, have invented a new and useful Improvement in the Processes of S01- dering Aluminum to Aluminum and Aluminum to other Metals, of which this is a specification.

This invention relates to the process of soldering aluminum to aluminum and aluminum to other metals'b means of the compound of which the i0 lowing are the con stituents and ingredients:

My composition consists of the following ingredients combined ap roximately in the proportions stated, viz: be following is the percentage of composition of the saidialuminum solder by weight: Tin 68%, zinc 29%, antimony 2%, phosphorus 1%. These different compositions of matter are to be thoroughly heated separately to a liquid form,

oil and then put on the market in what is commonly known as bar solder.

. Insoldering aluminum to aluminum or aluminum to other metals no effective method has yet been found to keep such metals soldered together permanently when put to the use for which such metals are intended. For a very lon time and as far as is known, no aluminum so der has yet been in Specification of Letters Patent.

Application flied March 16, 1908.

Patented Dec. 15, 1908.

Serial No. 421,360.

vented or put upon the market which, when tried and tested, has been found to be of-any practical commercial value. Manufacturers of aluminum have for a great number of years endeavored to secure an aluminum solder which would stand the usual chemical tests and ordinary usage. This aluminum solder will stand the usual chemical tests and ordinary usage, and is therefore of practical commercial value.

All aluminum solders that have in any way come to the notice of your petitioner are in liquid form, whereas the present solder comes ,in bar form.

The cheapest solder of aluminum or. of aluminum to other metals known at the present time which have come to the notice of petitioner, retail approximately about four dollars ($4.) per pound, but through this process I will be enabled to retail said aluminum solder at fully one half that price.

What I claim and desire to secure by Letg ters Patent of the United States, is then'thoroughly mixed and allowed to cool The herein-described composition of matter, consisting of tin, zinc, antimony, and phosphorus used. for the purpose of soldering aluminum to aluminum and aluminum to other metals substantially as herein described and for the purpose specified herein,

HARRY B. LAMBERT.

In the presence of- MILTON I'IART, SAMUEL Sonar. 

